I've built 27 and counting. I have a few more in the que and a few started but unfinished.
A mix of kits and clones, some in multiples:

K-3 Space Plane
K-4 Streak
K-5 Apogee II
K-7B Phantom
K-15 Sprite
K-17 Aerobee 300
K-18 X-Ray
K-23 Big Bertha
K-25 Alpha
K-33 Trident
K-30 Little Joe II
K-35 Constellation
K-36 Saturn V
K-37 Scrambler
K-40 Midget
K-41 Mercury Redstone
K-42 Orbital Transport
K-43 Mars Lander
K-45 Beta
K-46 Shrike
K-47 Cherokee-D
K-49 Sprint
K-50 Interceptor
K-52 Omega
K-52P Omega Payload
K-56 Alpha III
K-59 SPEV

I've also built some upscales and downscales in addition to the 1:1 kits.



My son has built these:

K-6 Ranger
K-10 Cobra
K-11 WAC Corporal
K-22 V-2
K-25 Alpha
K-29 Saturn 1B
K-38 Avenger
K-48 Bandit
K-50 Interceptor

__________________
I love sanding.